Place an ice ball in an Old Fashioned glass. In a measuring cup, mix together 2 oz. bourbon whisky, 1 oz. lemon juice, 1 oz. lime juice, and 2 oz. simple syrup. (If you are not using an ice ball, also add ice chips.) Pour mixture into a cocktail shaker and shake vigorously. (If you don't have a shaker, use a mixer or blender to blend well.) Immediately pour over ice ball, and place a cocktail pick containing ½ of an orange slice and 1 stemmed maraschino cherry on top of the drink.